$OpenBSD: patch-doc_Makefile_in,v 1.23 2015/04/05 22:25:08 robert Exp $
--- doc/Makefile.in.orig	Thu Mar  5 16:52:52 2015
+++ doc/Makefile.in	Fri Apr  3 23:11:10 2015
@@ -658,7 +658,7 @@ $(BUILT_SOURCES): manual.xml
 	@if [ -z $(PROG_XMLTO) ]; then \
 		echo Please install xmlto to generate manual pages; \
 	else \
-		LC_ALL=en_US.UTF-8 $(PROG_XMLTO) man ${top_srcdir}/doc/manual.xml; \
+		LC_ALL=C $(PROG_XMLTO) man ${top_srcdir}/doc/manual.xml; \
 	fi
 
 # force allpages to wait on output from xmlto
